package cn.tedu.hw_two;

public class Test5 {
public static void main(String[] args) {
	X x=new Y();
	//x.a=2;
	System.out.println(X.a);
	x.eat();
}
}
interface X{
	int a=1;
	void eat();
}
class Y implements X{
	public void eat() {
		System.out.println(5);
	}
}